Page-turner



" S. SHIBAM-URA.

PAGE TURNER.

APPLICATION FILED APR. 20,1918.

Patented Fab; 1, 1921.

" 4 SHEETS-SHEET I- S. SHIBAMURA.

PAGE TURNER.

APPLICATIGN HLED APR. 20, 1818.

1,367,101. 7 P11611161 Feb. 1,1921.

4 SHEETS-SHEET 2- In 784130 5X 0 W 176? W Who/h At-mrney- 's. S-HIBAMURA.

PAGE TURNER.

APPLICATION H'LED-APRJO, I918.

1,367;10l Patented Feb. 1, 1921 4 SHEETS-SHEET 3- S. SHIBAMURA.

PAGE TURNER.

APPLICATION FILED APR.20-, 19 18.

Patented Feb. 1, 1921;

4 SHEETSSHEET 4- 55 ing mechanism, Fig. 2 showing the locking snoarmoSHIBAIVIURA, or ToKYo, JAPAN;

' PAGE-TURNER.

Application filed. April 20, 1918. Serial No. 229,842.

To all whom may concern: 1

Be it known that I, SI-IOJIRO SHIBAMURA,

musician, a subject of the Emperor of Japan,

erable by the foot or the knee of the per.

former. I V

A further object of the invention isto provide a device of thischaracter'which will prevent the leaves being forced out of position b adraft or from any other cause'.

A further object of the invention is to provide a device which can bereadily applied to a piano, orto a tripod or any usual kind of musicstand. and generally to provide a device of the kind referred to whichwill be eiiicient,simple in construction'and inex pensiveto manufacture.V

1 With the above and other objects in'view, whi h will be apparent fromthe following description, my invention consists in the novelstructures, arrangements and combinations of parts to be described withreference to the accompanying drawings and more particularly set forthin the appended claims. j i In'the drawings: v. 'Figures 1 to 1illustrate acomplete device embodying my invention, Fig. 1 being aperspective view of the device ready to be operated, Fig. 1 a rear viewof the device in inoperative position, Fig. 1 a top View of same, Fig. 1a perspective .view of the.

laterally,fas by a wire17, the locking mem her will swing about its axis13' against the tension of a spring 18 which acts to, return the member12 to its normal positionwhen lot-king mechanism and Fig. 1 a view ofthe device mounted on a pianog,

Figs. 2 to 2 illustrates the principal parts 'of my device in detail,Fig. 2 being a per page turning arm'with ts spring, Fig. 2* a]fragmentary view'of the base of the' device with page turning arms"pivoted thereto, Fig.

spective view of the pivoted inner end of a 2 illustrating a pageturningfinger,Fig. 2 a telescopic rod forming'part of the actuat- Specification of Letters Patent.

Manam 1, 1921.

mechanism and the locking: member separately, and Fig. 2 being a planView of the loc ing 1 mechanism in operative position;

Figs. 3 to 3 illustrate a modification of UNITED STATESFPATJENT-OFFICE,

my invention in which the page turning fingers are adapted to grip theleavesor pages to be turned, Fig. 3? being a perspe tive view of thedevice ready for use, Fig. 3 illustrat ing a gripping finger and a clampusedfor turning the pages in reverse direction, Fig.

3 an arm used for reversing the movement of the pages, and Fig. 3 beingan enlarged View illustrating the reversing mechanism; Figs. 4 and 4"illustrate-the invention applied to a music stand, 4* showing thecomplete device and Fig. 4 a portion of the actuating connections on anenlarged scale.

Referring to Figs. 1*" and 1", reference numeral 5 designates the baseof my leaf turner which rests on adjustable brackets 4 adapted to besecured to the upper edge of a suitable support such as a backboard 6.To the base 5 is secured a substantially vertical pin orshaft 7 to whichare pivoted a series of horizontal arms8, each of which is mormallvuheld'in the inoperative position shown in Fig. 1 by a coil spring3, one end of whichbear's on;a projection 9 rising from the base and theother on the inner end '10 of the a rm,8: controlled by said spring. Theprojection 9-and the pivoted arm portions 10. herein shown have beengiven similar fanciful shapes for purposes of ornamentation.

" 'VVhen the arms 8 are movedto the left in Fig. 1 (or from left toright injFig. 1*) about. their pivot 7,'they are engaged by a lockingmechanism comprising a channel shaped trap 11 integral with or se uredtothe base 5 and a fork shaped locking mem ber 12 mounted to oscillate ona horizontalpivot 13 carried by the frame 11. l The locking member orrocker 12 comprises an 'arcuate' portion having tapered ends 161 and 1 5and al short vertical arm 16 so arranged that when; said armis pulledthe wire 17 .is released. The ends 14: andl5;

of the locking member extend through slots 19 and20 respectively inv theframe11, as best shown in FiggQi'and they are adapted front surface 21so arrangedthat Whenthe arms 8 are" forced into the frame or trap 11against the tension of their spr ngs 3 the .member'12 yields to their:rnovement, butwhen theyare released-within the trap'they engagingroller 24 (Fig. 2 which mayhave a roughened or knurled surface and,preferably, is surrounded with a rubber sleeve 25.

To the arm 16 of the locking member 12 secured a wire or cord 17attached to the end of a crank secured to an extensible rock shaft (Fig.2 This shaft comprises a polygonal section 31 anda tubular se'tion32having a polygonal bore 33 adapted to receive the polygonal. section31. The tubular section 32-fits in a guiding sleeve 34 whichIlSPI'OVlCiGCljWliJh lugs 35 whereby it can be secured to the backboard6. Se cured to thesection 32 is a crank 36 which is-connected by meansof a wire or cord 37 to an actuatingspring lever 38 (Figs. 1" and 1?)adapted to be secured beneath the keyboard of the piano. It will beunderstood that when lever 38 is depressed with the knee, the shaft31,32 will be. rocked: and

, top part being adjustable in a'well known" the wire .17 caused toswing the locking ..member 12 about its pivot 13, thus lifting thelatch-14; also that the shaft. 31, 32 will accommodate itself to .anyadjustment in the height. of 1 the backboard 6 which is hereinshown tobe formed of two parts, the

manner.

The modified structure illustrated in Figs. 3."? to3 is generallysimilar to that shown in. Figs. 1? to 2 in so far as the partsdescribed, above are concerned, with the exception of thepage engagingfingers which, i'n'Figs. 3 to 3 ,'comp rise clips 26 adapted togrip, thepagesto insure a permanent controljof the music by the turning device.Injoperation the. fingers23 01526 are caused lto engage the pages to heturnedand the V arms8 are successively introducedintothe trap 11. wherethey are held bythelocking member l2, as explained before... Nhen vit isdesired to turn a page the lever 38 is de- I pressed with the knee toraise the latch 14 andliberate the foremost arm 8 which is then freeito-swm'g about its pivot 7 under the action ,of its spring 3 and carriesthe Umusicleaf or page with it. As the latch 14 J islraised the latch15: is depressed and thus preventsthe' next arm following the arm justfreed. Themember 12 then swings back to its initial position under theinfluence of spring 18 and the latch 15 is withdrawn from the path ofthe next arm 8 which moves into engagement with the latch 14 and is nowready to turn the next page when the lever 38 will again be actuated.

held-in the position shown in Figs. 1' and 1'? by means of a coil spring43 similar to thesprings' 3. The arm 40 carries a depending finger 44with rubber sleeve 45 similar to the fingers 23 and sleeves 45respectively.

' The arm 40, when swung to the left (Fig- 1) about its pivot 41, isadapted .to enter the trap 11 where it is" held against the tension ofits spring 43 by the locking member 12 (Fig.1 The music tobe repeated isengaged on one side by the finger 44 and on the other side by twofingers 23, the arm 40 being interposed betweenthe'arms 8 to whichthesaid fingers 23 are secured. By operating theactuating lever three timesin succession the foremost arm '8 is first released to turn the leaf,then the arm 40 is caused to restore it to its initial position andfinally the second arm 8 repeats the movement'of the first arm 8. It isobvious that a plurality :of arms 40 may be mounted on the pivot 41 ifdesired. As shown in Fig. 1 the finger 44 swings clear of the music asit approaches its normal inoperative position;

In the modification illustrated in Figs. 3 to 3 the reversing arm 50 ispivoted to an extension 51 of the pin 7 on which the arms 8 arepivotally mounted. It is normally held in the position shown in Fig. 3by a spring53 (Fig. 3) which is more powerful than the springs 3foractuating the arms- 8. The arm 50 carries no page engaging;

finger, but it can'be secured to any of thearms 8 by means of a clampsarri s. 35'

and 3f). Tolock the arm 50 in'the position shown in Fig. 3 I provide ahook 54 on; one endof a lever 55 centrally pivoted'to;

the base '5 and connected at itsother end to a.v wire ,56;.adapted to beoperated by means of a lever (not shown) similar to the lever 38 inorderto release the arm 50. *The arm 50 is preferably provided with a hingedend portion'57 whichywhen the said arm is returned to its normalpositionabuts against a tripping member 58 adapted to be operated by theconnections v56and .59 tov disengage the arm portion 57 from clamp 52andjliberate the arm 8.

I F igjs. 4 and 4 show my improved supported abracket 30 adjustably sem17 the I device mounted on a music stand.- The base 5 is ;.i,

locking member or rocker 12 is operated by of said shaft/sections, aflexible connection v means of a resilient pedal 63 through a con-'between said rocker and one ofsaid cranks, nection comprising wire 64,bell-crank lever and a flexible connection between said actu- 65 andwire 66. ating lever and the other of said cranks.

It will be obvious that many changes may 5. vIn a page turning device,spring-conbe made in the construction and arrangetrolled means adaptedto turn the pages 'ment of theembodiments described without in onedirection,spring-controlled means departing from the scope of myinvention adapted'to turn'the pages in the opposite dias set forth inthe appended claims. rection, and means for latching both said I claim:I i means under tension, said latching means in 1. In a page turningdevice, a base, a in eluding a rocker and a pair of latches'conon saidbase, a plurality of spring contro led ,nected with said rocker, saidlatches being 1 arms pivotally mounted on said pin, and offset withrespect to one another; and I I means for holding said arms against thetenadapted to release one of said means at a sion of their respectivesprings, said means time, i a V I comprising a channel shaped trapadapted. 6. In a page turning device, a plurality of 7 5 to receive saidarms, a rocking member pivotal arms, springs tendingto move some mountedon said trap, latches on the ends of of said arms in one direction, aspring tendj saidmember, said latches being adapted to ing to move oneof said arms in the opposite extend through slots in a wall of the trap;direction, I and means for controlling the into the path of the arms andone of said movements of said arms,'said means includlatches beingoffset with respect to the other, ing a rocker, and a pair of latchesconnected and a spring normally holding one of said with said rocker andoflset with respect to latches within said trap. one another. 1 V l ,2.In a page turning device, a base, a pin 7. In a page turning device,a'plurality' H on said base, a plurality of spring controlled of pivotalarms, page engaging fingers 011,85 arms pivotally mounted on said pin,and said'arms, springs tending to'move some of means for holding saidarms against the said arms in one direction, a spring tending 1 tensionof their respective springs, said to move one of said arms in anopposite dimeans comprising a channel shaped trap on rection, andlatching means adapted to en-' said base,;a fork shapedrocker on saidtrap, I gage each and all'of said arms and hold and latches on the endsof the two fork arms, them against the tension of their respective saidlatches being adapted to extend through springs, said latching ,means'including a slots in a wall of the trap into the path of rockerand apair of latches connected with the arms and one of said latches "beingoifsaid rocker, said latches being offset with set with respect to theother, the front face respect to one another and adapted to rei of oneof said latches being inclined, and lease one of said arms at a time. i

7 means for actuating said rocker. V 8. In a page turning device,twosubstan- 3. In a page turning device, a'b'ase, a pin tially parallelpins, a plurality of spring on said base, a plurality ofspring-controlled controlled arms pivotally mounted on one armspivotally mounted on said pin, means of said pins, a spring-controlledarm pivcured to the stand 61 by a screw 62. i The for latching said armsunder tension including a rocker and latches connected with said rockerand adapted alternatively to engage and release said arms in successionupon opsection, an operating lever, a crank on eachotally mounted on theother pin, latching means adapted to hold said arms under tenofisetwithrespect to one anothercarried by sion including a rocker and a pairof latches eration of said rocker, and means for actu- 1 said rocker,and means for actuating said 105.

'ating said rocker including an extensible rockshaftr I for latchingsaid arms under tension includino a rocker and latches on said rocker,said 1 V lat ches being offset with respect to one an- V SHOJIRO i- B Bother, a rockshaft comprising a polygonal Witnesses. i i section and atubular section having a poly,,- H. F. HAWLEY,

onal bore adapted to engage said polygonal g S. HORIYE.

4. In a page turning device, a base, a .on said base, a plurality ofspring-controlled arms pivotally mounted on said p111, means. f

rocker, including an extensible crank shaft, -flexible connections andan cactuatlng lever withinthe -reach of the operators foot or a knee. 7g In testimony whereof I afiix my signature in presence of two wtnesses.

